Loom harness



March 31, 1959 F. H. KAUVFMANN 2,879,806

LOOM HARNESS Filed OCT.. 17,1957

*0 0 05V 00C, bf 0 ,0 )#3, /57 @di :/f g1 f4 l /fe lf4 09 0 P l /0\ E 20i0 3 INVENTOR ATTORNEY United States Patent O "ice '2,879,806 LooMHARNESS Frank H. Kaufmann, Huntingdon Valley, Pa., assignor to SteelHeddle Manufacturing Company, Philadelphia, Pa., a corporation ofPennsylvania Application October 17, 1957, Serial No. 690,653 4 Claims.(Cl. 139-92) This invention relates to loom harness, and it relates moreparticularly to the provision of means for reducing the wear of thecontacting parts where the end portions Aof the heddle supporting rodsare mounted in the end .that where the end portions of the heddlesupporting rods passed through the end struts of the frame, by reasonofcach being made of metal, considerable wear took place, both at theend portions of the heddle supporting rods and at the upper and lowerends of the slots in the end struts through which the rods passed. Thewear was caused because of the constant shifting of the stresses whenthe heddle frame was raised and lowered, during the operation of theloom, to form the successive sheds i of the warp.

vWhen such wear takes place it is frequently necessary to replace theheddle supporting rods even though they are otherwise in serviceablecondition, and in the modern forms of loom harness frames, in which theheddle supporting rods are permanently secured to the means for holdingthe same intermediate their ends, this is even more diicult andexpensive.

In other instances, it is sometimes necessary to en tirely discard theharness frame, when the wear takes place at the ends of the slots in theend struts of the frame, through which slots the end portions of theheddle rods extend.

The principal object of the present invention is to provide simple andeflicient means for reducing the wear on the end portions of the heddlesupporting rods, and at the ends of the slots in the end struts of theheddle frame through which the ends of the heddle rods pass.

The nature and characteristic features of the present invention will bemore readily understood from the following description, taken inconnection with the accompanying drawing forming part hereof, in which:

Figure 1 is a front elevation of a loom harness frame embodying the mainfeatures of the present invention;

Fig. 2 is an enlarged view, partly in elevation, and partly in section,of a portion of the corner structure of the frame shown in Fig. l; and

Fig. 3 is a vertical section taken on the line 3-3 of Fig. 2.

It should, of course, be understood that the description and drawingherein are illustrative merely, and that various modifications andchanges may be made in the structure disclosed without departing fromthe spirit of the invention.

Referring to the drawing, the loom harness frame shown 2,879,806Patented Mar. 31, 1959 therein may be of any preferred type employingtop and bottom rails 10 and end struts 11. Theheddlesupporting rods 12are positioned in the frame in the usual locations adjacent the top andbottom .rails 10, and have the heddles 13slidably mountedthereon in 4theusual and customary manner.

The heddle rods 12 are supported intermediate their ends in any desiredmanner preferably so that longitudinal movement of said heddle rods inthe frame will be limited or prevented. Likewise, the ends of the heddlerods 12 may be secured in any of the well known ways.

If the supporting devices nearest the ends of the frame are such thatlongitudinal movement of said heddle rods in the frame will be limitedor prevented, and are substantially close to the end struts 11, it isnot ordinarily necessary to use securing devices at the ends of theheddle supporting rods, as the same may be permitted to pass freelythrough suitable apertures 14 in the end struts 11, and be seatedtherein.

Each of the metallic strips used for forming the end struts 11 isprovided, at each of the places where the ends of the heddle supportingrods 12 pass therethrough, with a suitable slot 14 the width of which isequal to the thickness of the heddle supporting rod.

At the end of each slot 14 through which the heddle supporting rod 12passes, said slot 14 is enlarged as at 15 for the mounting therein of ablock 16, preferably made of shock resisting material, such as nylon orthe like, which is made tightly fitting in the enlargement 15 of theslot 14 in which it is mounted so as to be retained in place therein. Ofcourse, other means of retaining the blocks 16 in place may be used ifdesired.

By the provision of the blocks 16 of wear resisting material, the topand bottom edges of the heddle supporting rod 12 will be effectivelyprotected against the Wear which usually occurs between the abuttingsurfaces of the edges of the heddle supporting rods and the ends of theslots through which said heddle supporting rods pass.

By the foregoing arrangement, the wear which usually occurs at the endsof the heddle supporting rods and which results in a relative short lifeof the same is eliminated to a considerable extent, and replacement ofthe heddle supporting rods while the greater portions thereof are stillin relatively good condition will not be required.

Such wear as does occur will be in the bearing blocks 16 which, ofcourse, may be inexpensively replaced when required.

While the bearing blocks 16 are shown as being of rectangularcross-section, it should, however, be noted that blocks of any otherpreferred shape in cross-section may be used.

It should also be noted that the invention may be employed in loomharness frames in which there are used spring hooks or tongues havingtheir free ends engaging apertures in the ends of the heddle rods, whichspring hooks or tongues are mounted either on the inner or outer side ofthe end struts.

I claim:

1. In a loom harness frame comprising top and bottom rails connected byend struts, said end struts having slots therein, and heddle supportingrods the end portions of which extend through said slots, thecombination therewith of bearing blocks for the end portions of theheddle supporting rods mounted at the ends of the slots in the endstruts.

2. In a loom harness frame comprising top and bottom rails connected byend struts, said end struts having slots therein, and heddle supportingrods the end portions of which extend through said slots, thecombination therewith of blocks of wear resistant material mounted atthe ends of the slots providing bearings for the end portions A oftheheddle supporting rods. Y

3. In a loom harness frame comprising top and bottom rails connected bymetallic end struts, said end struts having slots therein, and heddlesupporting rods the end 5 of said slots providing bearings for the endportions of the 10 heddle supporting rods.

4. In a loom harness frame comprising top and bottom rails connected bymetallic end struts, said end struts having slots therein, and heddlesupporting rods the end portions of which extend through said slots,said slots having enlargements at the ends thereof, and blocks of wearresistant material mounted in said enlargements at the ends of the slotsproviding bearings for the end portions of the heddle supporting rods.

Norcferences cited.

